{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["company founders", "religion", "country of capital", "geographic distribution"], "input": "On Earth , the Arctic polar vortex is located over eastern North America in Canada and carries cold air to the northern Plains ."}
{"company founders": [], "religion": [], "country of capital": [], "geographic distribution": []}